Popular Choice
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4707/4709/4515 Drive Axle Spindle
Fits 4707, 4709 or 4515 brake assembly$845.00Login to ShopPopular Choice ✓ -
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Semi-Trailer Parallel Spindle 85
For trailers with 5” axle tubes$750.00Login to ShopPopular Choice ✓ -
Semi-Trailer Tapered Spindle 115
For trailers with 5 ¾” axle tubes$750.00Login to ShopPopular Choice ✓ -
Straight Truck Spindle (Meritor – Right)
Replacement spindle for Meritor Axles$845.00Login to ShopPopular Choice ✓ -
Straight Truck Spindle (Spicer – Left)
Replacement spindle for Spicer Axles$845.00Login to ShopPopular Choice ✓
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Best-selling spindles for Truck and Trailer Repair
Our Popular Choice category features the most trusted and frequently purchased truck and trailer spindles, selected by fleet operators, mechanics, and truck owners who demand reliability and performance. These spindles have been tested in real-world conditions and are engineered for seamless fitment, durability, and long service life.
Some Top-Rated Spindles in This Category:
✔️ 4707/4709/4515 Drive Axle Spindle
Our best-selling truck spindle, designed for highway and dump truck applications. Compatible with 4707, 4709, and 4515 brake assemblies, making it a versatile choice for various fleet configurations.
✔️ Mack Truck Spindle
Due to high demand, we’ve expanded our lineup to include Mack truck replacement spindles, built with high-strength 4140 steel and a multi-stage heat treatment process for superior durability that surpasses the original.
✔️ Semi-Trailer Parallel Spindle 85
Designed for a wide variety of semi-trailers with parallel spindles and a 5” axle tube.
✔️ Semi-Trailer Tapered Spindle 115
Engineered for a large number of semi-trailers with tapered spindles and a 5 ¾” axle tube.
✔️ Straight Truck Spindle (Meritor – Right)
Designed for Meritor-equipped straight trucks, including Freightliner, Volvo, Kenworth, and Peterbilt models. Saves thousands in full axle replacement costs, with 90-minute installation vs. 6-10 hours for a full axle swap.
✔️ Straight Truck Spindle (Spicer – Left)
Built for Dana Spicer axles, commonly found in Class 4-7 straight trucks like Kenworth/Peterbilt mediums and International MV models.
These top-rated axle spindles continue to be best-sellers because they are precision-engineered, widely compatible, and trusted for durability in demanding trucking environments.
Why These Products Are the Most Popular
Truck and trailer owners trust our spindles because they consistently deliver high performance, durability, and seamless compatibility. Designed to meet or exceed OEM specifications, these spindles are used in highway, construction, freight, and utility applications, ensuring optimal weight distribution, alignment, and stability. Their proven track record makes them the top choice for professionals looking for long-lasting solutions at competitive prices.
How do I maintain truck and trailer spindles for optimal performance?
Preventative maintenance extends spindle life and prevents unexpected failures:
- Inspect regularly – Check for wear, cracks, or rust before problems escalate.
- Lubricate properly – Use high-quality grease to prevent overheating and friction-related damage.
- Avoid overloading – Exceeding load capacity puts stress on axles, bearings, and suspension components.
- Perform timely repairs – Address worn bearings, lubricant leaks, or cracks before they cause costly breakdowns.
- Protect against corrosion – Apply anti-rust treatments in wet or salted road environments to extend service life.
For more details, read our article Spindle Failure: Signs, Causes & Prevention Tips.
Why is the 4707/4709/4515 Drive Axle Spindle in High Demand?
This spindle is one of the most versatile options available, fitting trucks with 4707, 4709, or 4515 brake spider plates. Its broad compatibility makes it the go-to choice for fleet operators looking for a reliable, cost-effective solution.